For the run of his exhibition at the Hirshhorn Museum and Sculpture Garden, Ali Kazma has transformed the museum's Black Box theater into a shrine to repetitive-stress injury.

The Turkish artist's bizarrely mesmerizing video installation -- which plays in a continuous loop on seven screens -- features footage of a notary public rubber-stamping stacks of documents at a pace so superhuman it will make your carpal tunnel ache.

Called O.K., Kazma's multi-channel work documents a simple if wrist-numbingly repetitive action: the stamping of corporate documents with a government seal. According to the artist, Turkish law requires that all of a company's official filings and accounting paperwork be stamped by hand with an inked rubber stamp, authenticating that they have been received by the proper authorities.